Numerical control tool surface turning finish machining equipment

Abstract

The invention relates to the field of machining equipment, in particular to numerical control tool surface turning finish machining equipment which comprises a clamp, a tool bar is fixedly clamped on the clamp, a turning tool is fixedly mounted at the left end of the tool bar, a mounting plate is fixedly mounted on the front side of the clamp, and a shielding mechanism used for protecting the turning tool is arranged on the mounting plate. The turning tool is shielded and protected through the shielding cover, so that the situation that the turning tool vibrates due to the fact that chips generated when a workpiece rotates and rolls up collide with the turning tool is prevented, the cutting precision of the inner surface of a deep hole is guaranteed, the shielding cover and the tool bar can be connected together through the connecting assembly, and the working efficiency is improved. The stability of the tool bar is improved through the shielding cover, vibration can be absorbed through a rubber pad in the connecting assembly, vibration generated when chippings impact on the shielding cover is prevented from being transmitted to the tool bar, the stability of the tool bar and the turning tool is further guaranteed, and the turning precision is improved.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing equipment, in particular to a surface turning finishing equipment for a numerically controlled tool. Background Art

[0002] Turning is a processing method that uses the rotational motion of the workpiece and the linear motion of the tool on a lathe to remove excess material. The workpiece is clamped on the spindle of the lathe and driven by the spindle to rotate at a constant speed. The tool is installed on the tool holder and realizes longitudinal, lateral or oblique feed motion through mechanisms such as the slide box. When the tool cuts into the rotating workpiece, it can remove excess material on the workpiece so that the shape and size of the workpiece meet the requirements.

[0003] When precision turning the inner surface of a workpiece with a deep hole, the tool is usually mounted on a tool bar, which is fixedly connected to a slide box by a clamp so that the slide box can drive the tool through the tool bar to extend into the deep hole of the workpiece. However, when the tool bar is used to turn the inner surface of the deep hole of the workpiece, the chips generated in the deep hole are difficult to be discharged in time, so that the chips are easily hit on the tool with the rotating workpiece, causing tool vibration and reducing turning accuracy. In addition, the thin and long chips are easily entangled on the tool bar, requiring manual cleaning of the chips, which reduces turning efficiency. Summary of the invention

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a CNC tool surface turning finishing equipment, including a fixture, a tool rod is clamped and fixed on the fixture, a turning tool is fixedly installed on the left end of the tool rod, a mounting plate is fixedly installed on the front side of the fixture, a shielding mechanism for protecting the turning tool is arranged on the mounting plate, and a chip removal mechanism for active chip removal is also arranged on the mounting plate.

[0005] The shielding mechanism includes a shielding cover that is set on the left side of the mounting plate by sliding left and right through a guide rod. The shielding cover is a C-shaped structure. The C-shaped opening of the shielding cover corresponds to the position of the turning tool. A side baffle is set on the left end of the shielding cover for sliding up and down. A clearance groove that runs through the left and right is opened on the side baffle. A baffle plate is set on the left side of the side baffle for sliding back and forth. A connecting component connected to the tool rod is set on the shielding cover. A chip guide component for guiding debris is also set on the shielding cover.

[0006] The chip removal mechanism includes a horizontal plate fixedly mounted on the left side of the mounting plate, a supporting assembly connected to the tool rod is arranged on the left side of the horizontal plate, a reciprocating plate is arranged on the lower side of the horizontal plate for sliding left and right, a plurality of chip pusher blocks connected to the reciprocating plate for sliding back and forth are arranged at equal intervals along the left and right directions at the lower part of the reciprocating plate, the chip removal mechanism also includes a driving assembly for driving the chip pusher blocks, the chip removal mechanism also includes a chip pulling assembly for assisting chip pulling, a shear plate with a right-angle trapezoidal structure is fixedly mounted on the lower right side of the horizontal plate through a connecting plate, and the upper side surface of the shear plate is flush with the lower side surface of the chip pusher block.

[0007] Preferably, the connecting assembly comprises moving blocks arranged on the inner side surface of the shielding cover at equal intervals along the circumference thereof, the moving blocks are slidably connected to the shielding cover along the radial direction thereof, and a rubber pad is fixedly mounted on one side of the moving block close to the axis of the shielding cover.

[0008] Preferably, a synchronous frame is slidably arranged on the inner side surface of the shielding cover, and a pushing block corresponding to the moving block one by one and used for pushing and pulling the moving block to move radially along the shielding cover is fixedly installed on the right side of the synchronous frame. A No. 1 screw is rotatably arranged on the shielding cover, and the No. 1 screw is threadedly connected to the synchronous frame.

[0009] Preferably, the pushing block is in a right-angled triangle structure, the moving block is in a right-angled trapezoid structure, the inclination of the pushing block is equal to the inclination of the moving block, and the inclination of the pushing block is slidably connected to the inclination of the moving block.

[0010] Preferably, the chip guide assembly includes two groups of No. 1 guide plates symmetrically arranged up and down and fixedly mounted on the outside of the shielding cover, each group is composed of No. 1 guide plates arranged at equal intervals along the circumference of the shielding cover, the No. 1 guide plates are arranged at an angle, and the outer side of the No. 1 guide plates faces away from the turning tool, and the front side of the shielding cover is fixedly installed with No. 2 guide plates arranged at an angle to the right at equal intervals along the left and right directions.

[0011] Preferably, the support assembly includes two symmetrically arranged clamps set on the left side of the horizontal plate by sliding up and down through an inserted rod. The side of the clamps close to each other presents an arc structure with the same curvature as the outer side of the knife rod. A bidirectional screw threadedly connected to the two clamps is rotatably arranged on the left side of the horizontal plate.

[0012] Preferably, the driving assembly includes a follower rod fixedly mounted on the upper part of the chip pusher block, the upper end of the follower rod is inserted into the upper side of the reciprocating plate, and guide rail grooves corresponding to the chip pusher blocks are arranged at equal intervals in the left and right directions on the lower side surface of the cross plate, and the upper end of the follower rod is slidably connected to the guide rail grooves.

[0013] Preferably, the guide rail groove as a whole has a right-angled trapezoidal structure, with the oblique section of the guide rail groove on the right and the right-angled side section on the left, a partition plate is hinged at the end of the oblique section of the guide rail groove, a No. 1 torsion spring is arranged between the partition plate and the guide rail groove, and a push spring is arranged between the rear side of the chip pusher block and the reciprocating plate.

[0014] Preferably, the chip pusher block is in a parallelogram structure, and the two oblique sides of the chip pusher block are inclined gradually from back to front toward the right. An electric push rod is fixedly installed on the front side of the mounting plate, and the telescopic section of the electric push rod is fixedly connected to the reciprocating plate.

[0015] Preferably, the chip pulling assembly includes an articulated block hinged at the middle of the chip pushing block, a No. 2 torsion spring is arranged between the articulated block and the chip pushing block, a chip pulling rod is fixedly mounted on the articulated block, and a plurality of chip hooks arranged up and down are arranged on the outer side surface of the chip pulling rod.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention adopts a shielding cover to shield and protect the turning tool, thereby preventing the debris rolled up by the rotation of the workpiece from hitting the turning tool and causing the turning tool to vibrate, thereby ensuring the cutting accuracy of the inner surface of the deep hole, and the feed direction of the turning tool can also be protected through the combination of the side baffle plate and the baffle plate, thereby increasing the shielding range and further preventing the debris from hitting the turning tool.

[0017] 2. The present invention adopts a connecting assembly to connect the shielding cover and the tool rod together, thereby increasing the stability of the tool rod through the shielding cover, and the rubber pad in the connecting assembly can absorb vibrations to prevent the vibrations caused by debris hitting the shielding cover from being transmitted to the tool rod, thereby further ensuring the stability of the tool rod and the turning tool and improving the turning accuracy.

[0018] 3. The present invention uses a reciprocating plate to drive a chip pusher block to pull the chips out of the deep hole of the workpiece by transmission, and then the chips are automatically sheared through the cooperation of the reciprocating plate on the rear side and the shear plate, so that the chips are scattered and prevented from being entangled on the tool rod. No manual cleaning is required, thereby improving the turning efficiency. The method of pulling out the chips first and then shearing the chips can prevent the chips from being dispersed inside the deep hole, thereby ensuring the chip removal effect.

[0019] Fourth, the present invention adopts a chip pulling component to increase the contact opportunity with the debris, so that the chip pulling component can timely pull the thin and long debris to the reciprocating plate, and then discharge the debris through the reciprocating plate, further ensuring the debris discharge effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a structural schematic diagram of the tool rod, turning tool, mounting plate and shielding mechanism in the present invention.

[0023] Figure 3 It is a left view of the shielding mechanism of the present invention when guiding the debris.

[0024] Figure 4 It is a cross-sectional view of the shielding mechanism in the present invention.

[0025] Figure 5 It is a structural schematic diagram of the tool bar, turning tool, mounting plate and chip removal mechanism in the present invention.

[0026] Figure 6 It is a structural schematic diagram of the transverse plate, reciprocating plate, chip pusher block, electric push rod and shear plate in the present invention.

[0027] Figure 7 It is a partial structural schematic diagram of the reciprocating plate, the chip pushing block, the driving assembly and the chip pulling assembly in the present invention.

[0028] Figure 8 It is a partial cross-sectional view of the reciprocating plate, the chip pusher block, the driving assembly and the cross plate in the present invention.

[0029] Fig. 9 It is a state change diagram of the chip pulling rod being pushed by the horizontal plate in the present invention.

[0030] Fig.10 It is a front view of the chip pulling rod and the chip hook member in the present invention.

[0031] In the figure: 1. fixture; 2. tool bar; 3. turning tool; 4. shielding mechanism; 5. chip removal mechanism; 11. mounting plate; 40. guide rod; 41. shielding cover; 42. side baffle plate; 43. baffle plate; 44. connecting assembly; 45. chip guide assembly; 51. cross plate; 52. supporting assembly; 53. reciprocating plate; 54. chip pusher block; 55. driving assembly; 56. chip pulling assembly; 57. electric push rod; 58. shear plate; 441. moving block; 442. rubber pad; 443. synchronous frame; 444. pushing block; 445. No. 1 screw; 451. No. 1 guide plate; 452. No. 2 guide plate; 521. clamping plate; 522. bidirectional screw; 551. follower rod; 552. guide groove; 561. hinge block; 562. chip pulling rod; 563. chip hook; 5521. partition plate. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the art or the product specifications are used.

[0033] See also Figure 1 , Figure 2 and Figure 5 A CNC tool surface turning finishing equipment includes a fixture 1, a tool rod 2 is clamped and fixed on the fixture 1, a turning tool 3 is fixedly installed on the left end of the tool rod 2, a mounting plate 11 is fixedly installed on the front side of the fixture 1, a shielding mechanism 4 for protecting the turning tool 3 is arranged on the mounting plate 11, and a chip removal mechanism 5 for active chip removal is also arranged on the mounting plate 11.

[0034] When it is necessary to perform turning processing on the inner surface of the deep hole of the workpiece, the turning tool 3 is first installed on the left end of the tool rod 2, and then the tool rod 2 is fixedly connected to the fixture 1. Then the fixture 1 is moved to drive the turning tool 3, the shielding mechanism 4 and the chip removal mechanism 5 to extend into the deep hole of the workpiece, so that the turning tool 3 turns the inner surface of the deep hole of the workpiece. At the same time, the turning tool 3 is protected by the shielding mechanism 4 to prevent debris from hitting the turning tool 3, and the debris inside the deep hole is actively discharged outward by the chip removal mechanism 5.

[0035] See also Figure 1 , Figure 2 and Figure 3 The shielding mechanism 4 includes a shielding cover 41 which is slidably arranged on the left side of the mounting plate 11 through a guide rod 40. The shielding cover 41 is a C-shaped structure. The C-shaped opening of the shielding cover 41 corresponds to the position of the turning tool 3. A side baffle plate 42 is slidably arranged on the left end of the shielding cover 41. A clearance groove which runs through the left and right sides is opened on the side baffle plate 42. A baffle plate 43 is slidably arranged on the left side of the side baffle plate 42.

[0036] When the tool rod 2 is clamped and fixed on the fixture 1, the operator manually holds the left end of the tool rod 2 and inserts it into the interior of the shielding cover 41, and then the operator manually slides the side baffle plate 42 up and down, so that the side baffle plate 42 drives the clearance groove thereon to correspond to the position of the turning tool 3, so that the turning tool 3 passes through the clearance groove to the left side of the side baffle plate 42, preventing the side baffle plate 42 from obstructing the contact between the turning tool 3 and the workpiece, and then the operator manually slides the baffle plate 43 backward to its rear side against the turning tool 3, and then the clearance groove of the side baffle plate 42 is closed through the turning tool 3 body and the baffle plate 43 to prevent debris from entering the interior of the shielding cover 41.

[0037] In this embodiment, since the turning tool 3 passes through the make way groove, the turning tool 3 limits the position of the side baffle plate 42 through the make way groove. At the same time, a locking screw is threadedly connected to the upper rear side of the side baffle plate 42. The operator fixes the side baffle plate 42 and the baffle groove plate 43 as a whole by hand-tightening the screws, thereby limiting the baffle groove plate 43.

[0038] See also Figure 1 , Figure 3 and Figure 4 The shielding mechanism 4 also includes a connecting assembly 44 arranged on the shielding cover 41, and the connecting assembly 44 includes moving blocks 441 arranged on the inner side surface of the shielding cover 41 at equal intervals along the circumference of the shielding cover 41. The moving blocks 441 are slidably connected to the shielding cover 41 along the radial direction, and a rubber pad 442 is fixedly installed on one side of the moving block 441 close to the axis of the shielding cover 41.

[0039] See also Figure 3 and Figure 4A synchronous frame 443 is slidably arranged on the inner side of the shielding cover 41, and a pushing block 444 corresponding to the moving block 441 and used to push and pull the moving block 441 to move radially along the shielding cover 41 is fixedly installed on the right side of the synchronous frame 443. A No. 1 screw 445 is rotatably arranged on the shielding cover 41, and the No. 1 screw 445 is threadedly connected to the synchronous frame 443.

[0040] See also Figure 4 The pushing block 444 is in a right-angled triangle structure, the moving block 441 is in a right-angled trapezoid structure, the inclination of the pushing block 444 is equal to the inclination of the moving block 441, and the inclination of the pushing block 444 is slidably connected with the inclination of the moving block 441.

[0041] When the left end of the tool rod 2 is inserted into the interior of the shielding cover 41, the shielding cover 41 is arranged coaxially with the tool rod 2. Then the operator manually turns the No. 1 screw 445, so that the No. 1 screw 445 drives the synchronous frame 443 to move to the right, and the synchronous frame 443 drives all the pushing blocks 444 to move to the right synchronously, and the pushing blocks 444 push the moving blocks 441 to move along the radial direction of the shielding cover 41 toward the direction close to the axis of the shielding cover 41, so that all the moving blocks 441 drive the rubber pads 442 thereon to press against the outer surface of the tool rod 2, so that the shielding cover 41 is elastically connected to the tool rod 2 through the rubber pads 442, which not only increases the stability of the left end of the tool rod 2 through the shielding cover 41, that is, increases the stability of the turning tool 3, prevents the turning tool 3 from vibrating during turning, and ensures the turning effect, but also absorbs the kinetic energy of the debris hitting the shielding cover 41 through the rubber pads 442, prevents the vibration of the shielding cover 41 from being transmitted to the turning tool 3, and further ensures the stability of the turning tool 3.

[0042] See also Figure 1 , Figure 5 and Figure 6 The chip removal mechanism 5 includes a horizontal plate 51 fixedly mounted on the left side of the mounting plate 11, a support assembly 52 connected to the tool rod 2 is arranged on the left side of the horizontal plate 51, a reciprocating plate 53 is arranged on the lower side of the horizontal plate 51 for sliding left and right, and a plurality of chip pushing blocks 54 are arranged at equal intervals along the left and right directions at the lower part of the reciprocating plate 53 for sliding forward and backward connection therewith.

[0043] See also Figure 1 and Figure 5 The support assembly 52 includes two symmetrically arranged clamping plates 521 which are set on the left side of the horizontal plate 51 by sliding up and down through an insertion rod. The side of the clamping plates 521 close to each other presents an arc structure with the same curvature as the outer side surface of the knife rod 2. A bidirectional screw 522 threadedly connected to the two clamping plates 521 is rotatably set on the left side of the horizontal plate 51.

[0044] When the tool rod 2 is fixedly installed on the clamp 1, the tool rod 2 is located between the two clamping plates 521. Then the operator manually rotates the bidirectional screw 522, so that the bidirectional screw 522 drives the clamping plates 521 to approach each other until the arc structure on the clamping plate 521 abuts against the outer surface of the tool rod 2, thereby fixing the tool rod 2 and the clamping plates 521 into a whole. Then, the clamping plate 521 fixes the tool rod 2 and the cross plate 51 into a whole, thereby increasing the horizontality of the cross plate 51 and the tool rod 2, thereby ensuring the turning accuracy of the turning tool 3.

[0045] See also Figure 1 , Figure 2 and Figure 3 The shielding mechanism 4 also includes a chip guide assembly 45 arranged on the shielding cover 41. The chip guide assembly 45 includes two groups of No. 1 guide plates 451 fixedly arranged on the outside of the shielding cover 41 and arranged symmetrically up and down. Each group is composed of No. 1 guide plates 451 arranged at equal intervals along the circumference of the shielding cover 41. The No. 1 guide plates 451 are arranged obliquely, and the outer side of the No. 1 guide plates 451 faces away from the turning tool 3. The front side of the shielding cover 41 is fixedly installed with No. 2 guide plates 452 arranged obliquely to the right at equal intervals along the left-right direction.

[0046] When the clamp 521 is clamped on the tool rod 2, the tool rod 2 is driven by the clamp 1 to extend the turning tool 3 into the deep hole of the workpiece, so that the turning tool 3 begins to turn the inner surface of the deep hole of the workpiece. After the chips cut by the turning tool 3 fall into the deep hole of the workpiece, the rotating workpiece drives the chips to rotate in the deep hole, and the chips moving toward the turning tool 3 are blocked by the side of the No. 1 guide plate 451 close to the axis of the shielding cover 41, but the side of the No. 1 guide plate 451 away from the axis of the shielding cover 41 will not block the chips moving away from the turning tool 3, thereby further preventing the chips from hitting the turning tool 3.

[0047] At the same time, the debris can be diverted and gathered to the front side of the deep hole of the workpiece. As the tool rod 2 feeds to the left, the tool rod 2 drives the shielding cover 41 to move to the left synchronously, so that the shielding cover 41 drives the second guide plate 452 to move synchronously, and the second guide plate 452 pushes the debris in contact with it forward through its side surface away from the axis of the shielding cover 41, preventing the second guide plate 452 moving to the left from pushing the debris to the deep inside of the deep hole.

[0048] See also Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 8The chip removal mechanism 5 also includes a driving component 55 for driving the chip pusher block 54. The driving component 55 includes a follower rod 551 fixedly installed on the upper part of the chip pusher block 54. The upper end of the follower rod 551 is inserted into the upper side of the reciprocating plate 53. Guide rail grooves 552 corresponding to the chip pusher block 54 are arranged at equal intervals in the left and right directions on the lower side surface of the cross plate 51. The upper end of the follower rod 551 is slidably connected to the guide rail groove 552.

[0049] See also Figure 6 , Figure 7 and Figure 8 The guide groove 552 is a right-angled trapezoidal structure as a whole, with the oblique section of the guide groove 552 on the right and the right-angled side section on the left. A partition plate 5521 is hinged at the end of the oblique section of the guide groove 552. A No. 1 torsion spring is arranged between the partition plate 5521 and the guide groove 552. A push spring is arranged between the rear side of the chip pusher block 54 and the reciprocating plate 53. The No. 1 torsion spring is not shown in the figure.

[0050] See also Figure 5 , Figure 6 , Figure 7 and Figure 8 The chip pusher block 54 is in a parallelogram structure, and the two oblique sides of the chip pusher block 54 are in an inclined state gradually tilted toward the right from the back to the front. An electric push rod 57 is fixedly installed on the front side of the mounting plate 11, and the telescopic section of the electric push rod 57 is fixedly connected to the reciprocating plate 53.

[0051] When the turning tool 3 starts to turn the inner surface of the deep hole of the workpiece, the telescopic section of the reciprocating electric push rod 57 enables the electric push rod 57 to drive all the chip pusher blocks 54 to move back and forth synchronously left and right through the reciprocating plate 53. When the chip pusher block 54 moves to the left, the debris is pushed forward by the inclined surface on the left side of the chip pusher block 54, preventing the chip pusher block 54 from pushing the debris to the deep inside of the deep hole. Then, the chip pusher block 54 moves to the right, and the inclined surface on the right side of the chip pusher block 54 can hook and drive the debris to move to the right, thereby pushing the debris to the outside of the deep hole, and then the chip pusher block 54 gradually pushes the chips from left to right to push the chips to the outside of the deep hole, completing the chip removal.

[0052] When the chip pusher block 54 moves to the right, the chip pusher block 54 drives the follower rod 551 thereon to move along the transverse section on the front side of the guide groove 552, so that the front side of the chip pusher block 54 extends to the front part of the reciprocating plate 53, so that the chip pusher block 54 can push the debris to move. When the follower rod 551 moves along the transverse section on the front side of the guide groove 552 to the position of the partition plate 5521, the follower rod 551 pushes the partition plate 5521 to rotate. When the follower rod 551 moves to the right end of the transverse section on the front side of the guide groove 552, the partition plate 5521 rotates and resets under the elastic force of the No. 1 torsion spring.

[0053] Subsequently, when the chip pusher block 54 moves to the left, the follower rod 551 moves to the partition plate 5521. Since the end of the partition plate 5521 abuts against the side wall of the guide groove 552, the follower rod 551 cannot push the partition plate 5521 to rotate, so that the follower rod 551 slides along the side of the partition plate 5521 to the oblique section of the guide groove 552, and then the follower rod 551 drives the chip pusher block 54 to move backward while moving to the left, until the front side of the chip pusher block 54 is flush with the front side of the reciprocating plate 53, and the push spring is compressed at the same time.

[0054] Then the follower rod 551 moves to the left along the transverse section on the rear side of the guide groove 552, so that the chip pusher block 54 is completely retracted under the lower side of the reciprocating plate 53 and moves to the left, preventing the chip pusher block 54 from pushing the debris back into the deep hole again. When the follower rod 551 moves to the leftmost side of the transverse section on the rear side of the guide groove 552, the push spring pushes the chip pusher block 54 forward through its own elastic force, so that the chip pusher block 54 drives the follower rod 551 to move forward along the right-angle side section on the left side of the guide groove 552 to the initial position, so as to pull the debris to the right again.

[0055] See also Figure 1 , Figure 5 , Figure 6 , Figure 7 , Fig. 9 and Fig.10 The chip removal mechanism 5 also includes a chip pulling component 56 for assisting in chip pulling. The chip pulling component 56 includes a hinged block 561 hinged at the middle of the chip pushing block 54. A No. 2 torsion spring is arranged between the hinged block 561 and the chip pushing block 54. A chip pulling rod 562 is fixedly mounted on the hinged block 561. A plurality of chip hooks 563 arranged up and down are arranged on the outer side surface of the chip pulling rod 562. The No. 2 torsion spring is not shown in the figure.

[0056] In the initial state, the No. 2 torsion spring pushes the hinge block 561 through its own elastic force, driving the chip pulling rod 562 to be in a vertical state. When the chip pushing block 54 moves to the right, the chip pushing block 54 drives the chip pulling rod 562 to move synchronously through the hinge block 561, and the chip pulling rod 562 hooks the debris through the chip hook piece 563 thereon. When the chip pushing block 54 moves backward, the chip pushing block 54 drives the chip pulling rod 562 to move synchronously through the hinge block 561. Since the chip pulling rod 562 is blocked by the front side of the cross plate 51, the cross plate 51 pushes the chip pulling rod 562 to drive the hinge block 561 to rotate, which can prevent the chip pulling rod 562 from blocking the movement of the chip pushing block 54. At the same time, the chip pulling rod 562 can also move the hooked debris to the position of the chip pushing block 54, thereby pulling the debris wrapped around the knife rod 2.

[0057] See also Figure 1 , Figure 5 , Figure 6 and Figure 7The chip removal mechanism 5 also includes a shear plate 58 in a right-angle trapezoidal structure fixedly mounted on the lower right side of the transverse plate 51 through a connecting plate, and the upper side of the shear plate 58 is flush with the lower side of the chip pusher block 54.

[0058] When the rightmost chip pusher block 54 pushes the debris to the position of the shear plate 58, the rightmost chip pusher block 54 moves toward the upper part of the shear plate 58, so that the rightmost chip pusher block 54 cooperates with the shear plate 58 to cut off the debris, thereby facilitating the debris to fall off the tool rod 2, and when the debris is sheared by the cooperation of the inclined surface on the right side of the chip pusher block 54 and the inclined surface on the left side of the shear plate 58, both the chip pusher block 54 and the shear plate 58 can push the debris backwards to prevent the debris from sliding out of the chip pusher block 54 and the shear plate 58 during shearing, thereby ensuring the shearing effect.

[0059] See also Figure 1-Figure 10 When turning the inner surface of a deep hole of a workpiece, the present invention also includes the following steps: In the first step, the turning tool 3 is first installed on the left end of the tool rod 2, and then the tool rod 2 is fixedly connected to the fixture 1, so that the left end of the tool rod 2 is inserted into the interior of the shielding cover 41.

[0060] In the second step, the operator slides the side baffle plate 42 until the clearance groove on it corresponds to the position of the turning tool 3, so that the turning tool 3 passes through the clearance groove to the left side of the side baffle plate 42, and then the operator manually slides the clearance groove plate 43 backward to its rear side against the turning tool 3, and then the clearance groove of the side baffle plate 42 is closed through the turning tool 3 body and the clearance groove plate 43 to prevent debris from entering the interior of the shielding cover 41.

[0061] The third step is to manually rotate the No. 1 screw 445 so that all the moving blocks 441 drive the rubber pads 442 thereon to press against the outer surface of the tool rod 2, so that the shielding cover 41 is elastically connected to the tool rod 2 through the rubber pads 442. The shielding cover 41 increases the stability of the left end of the tool rod 2 and the stability of the turning tool 3, and the rubber pads 442 absorb the kinetic energy of the debris hitting the shielding cover 41.

[0062] In the fourth step, the operator manually rotates the bidirectional screw 522 so that the bidirectional screw 522 drives the clamping plate 521 to press against the outer surface of the tool rod 2, thereby fixing the tool rod 2 and the clamping plate 521 into a whole, and then the clamping plate 521 fixes the tool rod 2 and the cross plate 51 into a whole, thereby increasing the horizontality of the cross plate 51 and the tool rod 2, thereby ensuring the turning accuracy of the turning tool 3.

[0063] In the fifth step, the turning tool 3 is driven by the fixture 1 to start turning the inner surface of the rotating workpiece deep hole. The chips cut by the turning tool 3 are guided by the first guide plate 451 and the second guide plate 452 and collected to the front side of the workpiece deep hole.

[0064] In the sixth step, the telescopic section of the reciprocating telescopic electric push rod 57 drives the reciprocating plate 53 to move back and forth along the trajectory of the guide groove 552, so that the chip pusher block 54 from left to right gradually pushes the debris, pushes the debris to the outside of the deep hole, and completes the chip removal. At the same time, the chip pulling rod 562 can move the hooked debris to the position of the chip pusher block 54, and then pull the debris wrapped around the tool rod 2.

[0065] In the seventh step, the rightmost chip pusher block 54 moves toward the upper part of the shear plate 58 so that the rightmost chip pusher block 54 cooperates with the shear plate 58 to cut off the debris, thereby facilitating the debris to fall off the cutter bar 2.

[0066] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention and they are still covered by the protection scope of the present invention.

Claims

1. A CNC tool surface turning finishing equipment, comprising a fixture (1), a tool bar (2) is clamped and fixed on the fixture (1), a turning tool (3) is fixedly installed on the left end of the tool bar (2), and the characteristics are: A mounting plate (11) is fixedly mounted on the front side of the clamp (1), a shielding mechanism (4) for protecting the turning tool (3) is arranged on the mounting plate (11), and a chip removal mechanism (5) for active chip removal is also arranged on the mounting plate (11); The shielding mechanism (4) comprises a shielding cover (41) which is slidably arranged on the left side of the mounting plate (11) via a guide rod (40), the shielding cover (41) being of a C-shaped structure, the C-shaped opening of the shielding cover (41) corresponding to the position of the turning tool (3), a side baffle (42) being slidably arranged on the left end of the shielding cover (41) up and down, a clearance groove penetrating left and right is provided on the side baffle (42), a retaining groove plate (43) is slidably arranged on the left side of the side baffle (42) forward and backward, a connecting component (44) connected to the tool rod (2) is provided on the shielding cover (41), and a chip guide component (45) for guiding chips is also provided on the shielding cover (41); The chip removal mechanism (5) comprises a transverse plate (51) fixedly mounted on the left side of the mounting plate (11); a support assembly (52) connected to the cutter bar (2) is arranged on the left side of the transverse plate (51); a reciprocating plate (53) is slidably arranged on the lower side of the transverse plate (51) to the left and right; a plurality of chip pusher blocks (54) slidably connected to the reciprocating plate (53) are arranged at equal intervals along the left and right directions at the lower part of the reciprocating plate (53); the chip removal mechanism (5) further comprises a driving assembly (55) for driving the chip pusher blocks (54); the chip removal mechanism (5) further comprises a chip pulling assembly (56) for assisting chip pulling; a shear plate (58) having a right-angle trapezoidal structure is fixedly mounted on the lower right side of the transverse plate (51) via a connecting plate; the upper side of the shear plate (58) is flush with the lower side of the chip pusher block (54).

2. A CNC tool surface turning finishing equipment according to claim 1, characterized in that: The connection assembly (44) comprises moving blocks (441) arranged at equal intervals on the inner side surface of the shielding cover (41) along the circumference thereof, the moving blocks (441) being slidably connected to the shielding cover (41) along the radial direction thereof, and a rubber pad (442) being fixedly mounted on one side of the moving block (441) close to the axis of the shielding cover (41).

3. The CNC tool surface turning finishing equipment according to claim 2, characterized in that: A synchronous frame (443) is slidably arranged on the inner side surface of the shielding cover (41) to the left and right, and a pushing block (444) corresponding to the moving block (441) and used for pushing and pulling the moving block (441) to move radially along the shielding cover (41) is fixedly installed on the right side of the synchronous frame (443), and a No. 1 screw rod (445) is rotatably arranged on the shielding cover (41), and the No. 1 screw rod (445) is threadedly connected to the synchronous frame (443).

4. The CNC tool surface turning finishing equipment according to claim 3, characterized in that: The pushing block (444) is in a right-angled triangle structure, the moving block (441) is in a right-angled trapezoid structure, the inclination of the pushing block (444) is equal to the inclination of the moving block (441), and the inclination of the pushing block (444) and the inclination of the moving block (441) are slidably connected together.

5. The CNC tool surface turning finishing equipment according to claim 1, characterized in that: The chip guide assembly (45) comprises two groups of No. 1 guide plates (451) which are symmetrically arranged in the upper and lower directions and fixedly mounted on the outer side of the shielding cover (41), each group is composed of No. 1 guide plates (451) which are arranged at equal intervals along the circumference of the shielding cover (41), the No. 1 guide plates (451) are arranged in an inclined manner, and the outer sides of the No. 1 guide plates (451) face away from the turning tool (3), and No. 2 guide plates (452) which are arranged in an inclined manner to the right and are fixedly mounted at equal intervals in the left-right direction on the front side of the shielding cover (41).

6. The CNC tool surface turning finishing equipment according to claim 1, characterized in that: The support assembly (52) comprises two clamping plates (521) arranged symmetrically up and down and arranged on the left side of the horizontal plate (51) by means of an insertion rod, the sides of the clamping plates (521) close to each other present an arc structure with the same arc as the outer side surface of the knife rod (2), and a bidirectional screw rod (522) threadedly connected to the two clamping plates (521) is rotatably arranged on the left side of the horizontal plate (51).

7. The CNC tool surface turning finishing equipment according to claim 1, characterized in that: The driving assembly (55) comprises a follower rod (551) fixedly mounted on the upper part of the chip pusher block (54), the upper end of the follower rod (551) is inserted into the upper side of the reciprocating plate (53), and guide rail grooves (552) corresponding to the chip pusher blocks (54) are arranged at equal intervals in the left-right direction on the lower side surface of the cross plate (51), and the upper end of the follower rod (551) is slidably connected to the guide rail grooves (552).

8. The CNC tool surface turning finishing equipment according to claim 7, characterized in that: The guide rail groove (552) is in a right-angled trapezoidal structure as a whole, with the oblique section of the guide rail groove (552) on the right and the right-angled side section on the left. A partition plate (5521) is hingedly connected to the end of the oblique section of the guide rail groove (552), a first torsion spring is arranged between the partition plate (5521) and the guide rail groove (552), and a push spring is arranged between the rear side of the chip pusher block (54) and the reciprocating plate (53).

9. The CNC tool surface turning finishing equipment according to claim 1, characterized in that: The chip pusher block (54) is in a parallelogram structure, and the two oblique sides of the chip pusher block (54) are in an inclined state gradually tilting rightward from back to front. An electric push rod (57) is fixedly mounted on the front side of the mounting plate (11), and the telescopic section of the electric push rod (57) is fixedly connected to the reciprocating plate (53).

10. The CNC tool surface turning finishing equipment according to claim 1, characterized in that: The chip pulling assembly (56) comprises an articulated block (561) hinged at the middle of the chip pushing block (54), a second torsion spring is arranged between the articulated block (561) and the chip pushing block (54), a chip pulling rod (562) is fixedly mounted on the articulated block (561), and a plurality of chip hooks (563) arranged up and down are arranged on the outer side surface of the chip pulling rod (562).

Images